Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Patent
1985-10-11
1987-03-31
Meister, James M.
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
81 5714, 173 93, B25B 23157
Patent
active
046533591
ABSTRACT:
Structural improvement of electric screwdriver with respect to the torsion adjustment thereof, incorporating a torsion mechanism having outer threads in the anterior shell in coordination with a hollow-set torsion adjustment lid having correspondingly provided inner threads, so that manually imposed rotative feeding of the adjustment lid may force the supporting stem to exert depression on the depression spring through the adjustment disk, resulting in vertical engagement of both the upper and the lower ratchet, also in mortise joint of the torsion stem with the lower ratchet; that activation of a finely-touched switch starts the motor to acquire an increased torque by virtue of the main gear in relation to the vernier gear, eventually setting the torsion stem to rotation while locking the screw or else releasing the same, the torsion adjustment lid permissive of multiple-shifted helic adjustments with precision and convenience. The motor being smooth in running, thereby shortens time and labor in work.
REFERENCES:
patent: 1769510 (1930-07-01), Herman
patent: 2552840 (1951-05-01), Burke et al.
patent: 4346633 (1982-08-01), Rendl
patent: 4517865 (1985-05-01), Huang
Knoble John L.
Meister James M.
LandOfFree
Structural improvement of electric screwdriver with respect to t does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Structural improvement of electric screwdriver with respect to t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structural improvement of electric screwdriver with respect to t will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2205035